private function __doProcessBitmaps(bitmapData:BitmapData, backgroundColor:uint):void
{
    var maxFramesX:int = (bitmapData.width / __mBlockWidth);
    var maxFramesY:int = (bitmapData.width / __mBlockWidth);

    var bitmapDataBuffer:BitmapData = new BitmapData(__mBlockWidth, __mBlockHeight);
    var pointBuffer:Point = new Point;
    var rectangleBuffer:Rectangle = new Rectangle(0, 0, __mBlockWidth, __mBlockHeight);

    for (var i:int = 0; i < maxFramesY; i++)
    {
        __mBitmaps.push(new Array);

        for (var j:int = 0; j < maxFramesX; j++)
        {
            rectangleBuffer.x = (__mBlockWidth * j) + (j > 0 ? j : 0);
            bitmapDataBuffer.copyPixels(bitmapData, rectangleBuffer, pointBuffer);

            var rect:Rectangle = bitmapDataBuffer.getColorBoundsRect(backgroundColor, backgroundColor, false);

            if (rect.width && rect.height)
            {
                var data:BitmapData = new BitmapData(rect.width, rect.height);

                data.copyPixels(bitmapDataBuffer, rect, pointBuffer);
                data.threshold(data, data.rect, pointBuffer, "==", backgroundColor);

                __mBitmaps[i].push(data);
            }
            else
            {
                break;
            }
        }

        rectangleBuffer.y += (__mBlockHeight + 1);
    }
}